GNU bug report logs - #36747
Official MesCC bootstrap binaries differ from my locally built ones

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Message #37 received at 36747 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Mark H Weaver <mhw <at> netris.org>
Cc: 36747 <at> debbugs.gnu.org, Jan Nieuwenhuizen <janneke <at> gnu.org>
Subject: Re: bug#36747: Official MesCC bootstrap binaries differ from my
 locally built ones
Date: Tue, 23 Jul 2019 12:03:27 +0200

Hi Mark,

Mark H Weaver <mhw <at> netris.org> skribis:

> Hi Janneke,
>
>> I have added a very similar set of two patches to wip-cu-binaries,
>> branched @ ef809e3ac036eccc5f9c9edd8fb661d14ae15f2f.
>>
>> They give the same md5sum for me as the wip-binaries branch that
>> branched off of master; so mine are at
>> http://lilypond.org/janneke/guix/20190722/
>
> I built these, and here are the results:
>
> mhw <at> jojen /gnu/store/hd3lk0f08a0sq40qqa6yv1q9gbk7gxww-bootstrap-tarballs-0$ sha256sum *
> b5915c71ff5ea722864e1097ce1e7ed50fd68ad7544521f2dd6969173c260276  guile-static-stripped-2.2.4-i686-linux.tar.xz
> 1acd8f83e27d2fac311a5ca78e9bf11a9a1638b82469870d5c854c4e7afaa26a  linux-libre-headers-stripped-4.14.67-i686-linux.tar.xz
> 021543d9bb6af55f39e68d69692e3cb74646ced2cad0bb9ac0047ef81e9d7330  mescc-tools-static-stripped-0.5.2-0.bb062b0-i686-linux.tar.xz
> fb32090071b39fc804fb9a7fba96f0bc5eb844a0efd268fb24c42e6bfa959de0  mes-minimal-stripped-0.19-i686-linux.tar.xz
> 9ee954dc19db5c8d4113c73a702fd8f79f26c51024220f2617d0572c0a85e69c  static-binaries-0-i686-linux.tar.xz
>
> Do these match what you built?

We verified things back then:

  https://lists.gnu.org/archive/html/guix-devel/2018-12/msg00046.html

This was on commit 4ae7dc7b9af64794081b1913740b97acd89c91bc, which is
earlier than the one you’re looking at (commit
ef809e3ac036eccc5f9c9edd8fb661d14ae15f2f, right?)

> For the sake of completeness, I built these by running
>
>   ./pre-inst-env guix build bootstrap-tarballs --system=i686-linux
>
> from a git checkout at commit 5a6465e41a84b4320940d33709b80d78c1aff9d0.

Hmm I don’t have this commit here.

I think we should first make sure we’re starting from the right
commits.  Then, if there are still differences, I suggest a cursory look
at the output of ‘diffoscope’ to see if there’s anything obvious
(non-determinism in .go files is apparently still a problem, for
example.)

Thanks for checking!

Ludo’.

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